

                                        /
                                      // /
                                     /////
                   /\_________/\____/\//\____/\  _______/\
                   \__       /__     \\__    \/  _____/
          __________/ ___    / /   .  \/   __  \_____  \__________
          \        /  \  \ /\/.  |    \. |/   \ .    \        /
           \     /:.\/ \.:!     \:/     \:.  \     /
            \   _/:.:     \_.     \_      \_:.   \_   /
             \  \_______________/__________/________/_______/  /
              \_______________________________________________/
                            /////[AVL/BB]
                           // /
                          /

